<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        function person(){
            console.log('hello')
        }
        function Person(){
            this.name='zhicha'
            return [1,2,3]
        }
        // 3
        var obj =new Person()
        console.log(obj)
        var obj2 =Person
        console.log(obj2) 
    </script>
</body>
</html>